Home / 21,106.48-29,114.25-13,936.46

Finding the Fourth Proportional to 21,106.48, 29,114.25 and 13,936.46

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Solution

The fourth proportional to 21,106.48, 29,114.25 and 13,936.46 is: 19,223.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,106.48 : 29,114.25 = 13,936.46 : x
  2. Step 2: Convert to fraction form
    21,106.48/29,114.25 = 13,936.46/x
  3. Step 3: Cross multiply
    21,106.48x = 29,114.25 × 13,936.46
  4. Step 4: Simplify right side
    21,106.48x = 405,749,580.56
  5. Step 5: Solve for x
    x = 405,749,580.56/21,106.48
  6. Step 6: Final answer
    x = 19,223.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.